class StudentModel:
    def __init__(self, sid="", name="", english=0, python=0, c=0, score=0):
        self.__id = sid
        self.__name = name
        self.__english = english
        self.__python = python
        self.__c = c
        self.__score = score

    @property
    def id(self):
        return self.__id

    @id.setter
    def id(self, value):
        self.__id = value

    @property
    def name(self):
        return self.__name

    @name.setter
    def name(self, value):
        self.__name = value

    @property
    def english(self):
        return self.__english

    @english.setter
    def english(self, value):
        if 0 <= value <= 100:
            self.__english = value
        else:
            raise Exception

    @property
    def python(self):
        return self.__python

    @python.setter
    def python(self, value):
        if 0 <= value <= 100:
            self.__python = value
        else:
            raise Exception

    @property
    def c(self):
        return self.__c

    @c.setter
    def c(self, value):
        if 0 <= value <= 100:
            self.__c = value
        else:
            raise Exception

    @property
    def score(self):
        return self.__score

    @score.setter
    def score(self, value):
        if 0 <= value <= 100:
            self.__score = value
        else:
            raise Exception
